colour.colorimetry.lightness_CIE1976#
- colour.colorimetry.lightness_CIE1976(Y: ArrayLike, Y_n: ArrayLike = 100) NDArrayFloat [source]#
Return the Lightness \(L^*\) of given luminance \(Y\) using given reference white luminance \(Y_n\) as per CIE 1976 recommendation.
- Parameters:
Y (ArrayLike) – Luminance \(Y\).
Y_n (ArrayLike) – White reference luminance \(Y_n\).
- Returns:
Lightness \(L^*\).
- Return type:
Notes
Domain
Scale - Reference
Scale - 1
Y
[0, 100]
[0, 1]
Range
Scale - Reference
Scale - 1
L_star
[0, 100]
[0, 1]
References
[CIET14804h], [WS00l]
Examples
>>> lightness_CIE1976(12.19722535) 41.5278758...